Use dot instead of comma as thousands separator in number line

docs/release-notes-editor.txt

@@ -2,6 +2,7 @@ Editor
 ======
 1.23.0
  - Fix setting of the default z-index for frames
+ - Use dot instead of comma as thousands separator in number line
 
 1.22.0
 - Rework cloze element

docs/release-notes-player.txt

@@ -4,6 +4,7 @@ Player
 - Add animation for fixed virtual keyboard
 - Change names of virtual keyboards for math
 - Fix the display of dynamic elements with negative z-index
+- Use dot instead of comma as thousands separator in number line
 
 
 1.16.0

projects/common/ui-elements/slider/slider.component.ts

@@ -32,7 +32,7 @@ import { FormElementComponent } from '../../directives/form-element-component.di
              [style.font-weight]="elementModel.fontProps.bold ? 'bold' : ''"
              [style.font-style]="elementModel.fontProps.italic ? 'italic' : ''"
              [style.text-decoration]="elementModel.fontProps.underline ? 'underline' : ''">
-          {{elementModel.minValue | number:'.0'}}
+          {{elementModel.minValue | number:'':'de'}}
         </div>
         <div [style.display]="'flex'"
              [style.flex-direction]="'column'"
@@ -58,7 +58,7 @@ import { FormElementComponent } from '../../directives/form-element-component.di
              [style.font-weight]="elementModel.fontProps.bold ? 'bold' : ''"
              [style.font-style]="elementModel.fontProps.italic ? 'italic' : ''"
              [style.text-decoration]="elementModel.fontProps.underline ? 'underline' : ''">
-        {{elementModel.maxValue | number:'.0'}}</div>
+        {{elementModel.maxValue | number:'':'de'}}</div>
       </div>
     </div>
   `,